var docCookies = { 
  getItem: (sKey:string) => {
    return (
      decodeURIComponent(
        document.cookie.replace(
          new RegExp(
            "(?:(?:^|.*;)\\s*" +
              encodeURIComponent(sKey).replace(/[-.+*]/g, "\\$&") +
              "\\s*\\=\\s*([^;]*).*$)|^.*$"
          ),
          "$1"
        )
      ) || null
    );
  },

  setItem: (sKey: string,sValue: string,vEnd?: any,sPath?: string,sDomain?: string,bSecure?: string) => {
    if (!sKey || /^(?:expires|max\-age|path|domain|secure)$/i.test(sKey)) {
      return false;
    }

    var sExpires = "";

    if (vEnd) {
      switch (vEnd.constructor) {
        case Number:
          sExpires =
            vEnd === Infinity
              ? "; expires=Fri, 31 Dec 9999 23:59:59 GMT"
              : "; max-age=" + vEnd;
          break;
        case String:
          sExpires = "; expires=" + vEnd;
          break;
        case Date:
          sExpires = "; expires=" + vEnd.toUTCString();
          break;
      }
    }
    
    document.cookie =
      encodeURIComponent(sKey) +
      "=" +
      encodeURIComponent(sValue) +
      sExpires +
      (sDomain ? "; domain=" + sDomain : "") +
      (sPath ? "; path=" + sPath : "") +
      (bSecure ? "; secure" : "");
    
    return true;
  },

  removeItem: (sKey: string, sPath?: string, sDomain?: string) => {
    if(!sKey || docCookies.hasItem(sKey)) {
      return false;
    }

    document.cookie   = encodeURIComponent(sKey);
    document.cookie  += "=; expires=Thu, 01 Jan 1970 00:00:00 GMT";
    document.cookie  += (sDomain ? "; domain=" + sDomain : "");
    document.cookie  += (sPath ? "; path=" + sPath : "");

    return true;
  },

  hasItem: (sKey:string) => {
    return new RegExp("(?:^|;\\s*)" + encodeURIComponent(sKey).replace(/[-.+*]/g, "\\$&") + "\\s*\\=").test(document.cookie);
  },

  keys: () => {
    /* optional method: you can safely remove it! */
    var aKeys = document.cookie.replace(/((?:^|\s*;)[^\=]+)(?=;|$)|^\s*|\s*(?:\=[^;]*)?(?:\1|$)/g, "").split(/\s*(?:\=[^;]*)?;\s*/);

    for (var nIdx = 0; nIdx < aKeys.length; nIdx++) {
      aKeys[nIdx] = decodeURIComponent(aKeys[nIdx]);
    }
    
    return aKeys;
  }
}

export default docCookies